2003-06-30 14:36:45

by Trond Myklebust

[permalink] [raw]
Subject: [PATCH 1/4] Optimize NFS open() calls by means of 'intents'...


- Add open intent information to the 'struct nameidata'.
- Pass the struct nameidata as an optional parameter to the
lookup() inode operation.
- Pass the struct nameidata as an optional parameter to the
d_revalidate() dentry operation.
- Make link_path_walk() set the LOOKUP_CONTINUE flag in nd->flags instead
of passing it as an extra parameter to d_revalidate().
- Make open_namei(), and sys_uselib() set the open()/create() intent
data.

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/drivers/net/wan/comx.c linux-2.5.73-04-lookupintent/drivers/net/wan/comx.c
--- linux-2.5.73-03-rpc_integ/drivers/net/wan/comx.c 2003-05-20 08:57:38.000000000 +0200
+++ linux-2.5.73-04-lookupintent/drivers/net/wan/comx.c 2003-06-30 08:48:42.000000000 +0200
@@ -86,7 +86,7 @@

static int comx_mkdir(struct inode *, struct dentry *, int);
static int comx_rmdir(struct inode *, struct dentry *);
-static struct dentry *comx_lookup(struct inode *, struct dentry *);
+static struct dentry *comx_lookup(struct inode *, struct dentry *, struct nameidata *);

static struct inode_operations comx_root_inode_ops = {
.lookup = comx_lookup,
@@ -922,7 +922,7 @@
return 0;
}

-static struct dentry *comx_lookup(struct inode *dir, struct dentry *dentry)
+static struct dentry *comx_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct proc_dir_entry *de;
struct inode *inode = NULL;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/adfs/adfs.h linux-2.5.73-04-lookupintent/fs/adfs/adfs.h
--- linux-2.5.73-03-rpc_integ/fs/adfs/adfs.h 2002-05-01 20:54:55.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/adfs/adfs.h 2003-06-30 08:48:42.000000000 +0200
@@ -88,7 +88,7 @@
#define adfs_error(sb, fmt...) __adfs_error(sb, __FUNCTION__, fmt)

/* namei.c */
-extern struct dentry *adfs_lookup(struct inode *dir, struct dentry *dentry);
+extern struct dentry *adfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *);

/* super.c */

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/adfs/dir.c linux-2.5.73-04-lookupintent/fs/adfs/dir.c
--- linux-2.5.73-03-rpc_integ/fs/adfs/dir.c 2002-08-03 12:12:00.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/adfs/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -269,7 +269,7 @@
.d_compare = adfs_compare,
};

-struct dentry *adfs_lookup(struct inode *dir, struct dentry *dentry)
+struct dentry *adfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct inode *inode = NULL;
struct object_info obj;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/affs/namei.c linux-2.5.73-04-lookupintent/fs/affs/namei.c
--- linux-2.5.73-03-rpc_integ/fs/affs/namei.c 2003-03-17 07:33:20.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/affs/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -210,7 +210,7 @@
}

struct dentry *
-affs_lookup(struct inode *dir, struct dentry *dentry)
+affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct super_block *sb = dir->i_sb;
struct buffer_head *bh;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/afs/dir.c linux-2.5.73-04-lookupintent/fs/afs/dir.c
--- linux-2.5.73-03-rpc_integ/fs/afs/dir.c 2003-04-03 08:51:32.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/afs/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -23,10 +23,10 @@
#include "super.h"
#include "internal.h"

-static struct dentry *afs_dir_lookup(struct inode *dir, struct dentry *dentry);
+static struct dentry *afs_dir_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *);
static int afs_dir_open(struct inode *inode, struct file *file);
static int afs_dir_readdir(struct file *file, void *dirent, filldir_t filldir);
-static int afs_d_revalidate(struct dentry *dentry, int flags);
+static int afs_d_revalidate(struct dentry *dentry, struct nameidata *);
static int afs_d_delete(struct dentry *dentry);
static int afs_dir_lookup_filldir(void *_cookie, const char *name, int nlen, loff_t fpos,
ino_t ino, unsigned dtype);
@@ -414,7 +414,7 @@
/*
* look up an entry in a directory
*/
-static struct dentry *afs_dir_lookup(struct inode *dir, struct dentry *dentry)
+static struct dentry *afs_dir_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct afs_dir_lookup_cookie cookie;
struct afs_super_info *as;
@@ -487,7 +487,7 @@
* - NOTE! the hit can be a negative hit too, so we can't assume we have an inode
* (derived from nfs_lookup_revalidate)
*/
-static int afs_d_revalidate(struct dentry *dentry, int flags)
+static int afs_d_revalidate(struct dentry *dentry, struct nameidata *nd)
{
struct afs_dir_lookup_cookie cookie;
struct dentry *parent;
@@ -495,7 +495,7 @@
unsigned fpos;
int ret;

- _enter("%s,%x",dentry->d_name.name,flags);
+ _enter("%s,%p",dentry->d_name.name,nd);

parent = dget_parent(dentry);
dir = parent->d_inode;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/afs/mntpt.c linux-2.5.73-04-lookupintent/fs/afs/mntpt.c
--- linux-2.5.73-03-rpc_integ/fs/afs/mntpt.c 2002-10-16 14:34:58.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/afs/mntpt.c 2003-06-30 08:48:42.000000000 +0200
@@ -21,7 +21,7 @@
#include "internal.h"


-static struct dentry *afs_mntpt_lookup(struct inode *dir, struct dentry *dentry);
+static struct dentry *afs_mntpt_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *);
static int afs_mntpt_open(struct inode *inode, struct file *file);

struct file_operations afs_mntpt_file_operations = {
@@ -93,7 +93,7 @@
/*
* no valid lookup procedure on this sort of dir
*/
-static struct dentry *afs_mntpt_lookup(struct inode *dir, struct dentry *dentry)
+static struct dentry *afs_mntpt_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
return ERR_PTR(-EREMOTE);
} /* end afs_mntpt_lookup() */
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/autofs/root.c linux-2.5.73-04-lookupintent/fs/autofs/root.c
--- linux-2.5.73-03-rpc_integ/fs/autofs/root.c 2002-11-17 21:30:45.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/autofs/root.c 2003-06-30 08:48:42.000000000 +0200
@@ -18,7 +18,7 @@
#include "autofs_i.h"

static int autofs_root_readdir(struct file *,void *,filldir_t);
-static struct dentry *autofs_root_lookup(struct inode *,struct dentry *);
+static struct dentry *autofs_root_lookup(struct inode *,struct dentry *, struct nameidata *);
static int autofs_root_symlink(struct inode *,struct dentry *,const char *);
static int autofs_root_unlink(struct inode *,struct dentry *);
static int autofs_root_rmdir(struct inode *,struct dentry *);
@@ -144,7 +144,7 @@
* yet completely filled in, and revalidate has to delay such
* lookups..
*/
-static int autofs_revalidate(struct dentry * dentry, int flags)
+static int autofs_revalidate(struct dentry * dentry, struct nameidata *nd)
{
struct inode * dir;
struct autofs_sb_info *sbi;
@@ -195,7 +195,7 @@
.d_revalidate = autofs_revalidate,
};

-static struct dentry *autofs_root_lookup(struct inode *dir, struct dentry *dentry)
+static struct dentry *autofs_root_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct autofs_sb_info *sbi;
int oz_mode;
@@ -230,7 +230,7 @@
d_add(dentry, NULL);

up(&dir->i_sem);
- autofs_revalidate(dentry, 0);
+ autofs_revalidate(dentry, nd);
down(&dir->i_sem);

/*
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/autofs4/root.c linux-2.5.73-04-lookupintent/fs/autofs4/root.c
--- linux-2.5.73-03-rpc_integ/fs/autofs4/root.c 2003-05-26 08:19:27.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/autofs4/root.c 2003-06-30 08:48:42.000000000 +0200
@@ -18,13 +18,13 @@
#include <linux/smp_lock.h>
#include "autofs_i.h"

-static struct dentry *autofs4_dir_lookup(struct inode *,struct dentry *);
+static struct dentry *autofs4_dir_lookup(struct inode *,struct dentry *, struct nameidata *);
static int autofs4_dir_symlink(struct inode *,struct dentry *,const char *);
static int autofs4_dir_unlink(struct inode *,struct dentry *);
static int autofs4_dir_rmdir(struct inode *,struct dentry *);
static int autofs4_dir_mkdir(struct inode *,struct dentry *,int);
static int autofs4_root_ioctl(struct inode *, struct file *,unsigned int,unsigned long);
-static struct dentry *autofs4_root_lookup(struct inode *,struct dentry *);
+static struct dentry *autofs4_root_lookup(struct inode *,struct dentry *, struct nameidata *);

struct file_operations autofs4_root_operations = {
.open = dcache_dir_open,
@@ -143,7 +143,7 @@
* yet completely filled in, and revalidate has to delay such
* lookups..
*/
-static int autofs4_root_revalidate(struct dentry * dentry, int flags)
+static int autofs4_root_revalidate(struct dentry * dentry, struct nameidata *nd)
{
struct inode * dir = dentry->d_parent->d_inode;
struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
@@ -183,7 +183,7 @@
return 1;
}

-static int autofs4_revalidate(struct dentry *dentry, int flags)
+static int autofs4_revalidate(struct dentry *dentry, struct nameidata *nd)
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);

@@ -225,7 +225,7 @@
/* Lookups in non-root dirs never find anything - if it's there, it's
already in the dcache */
/* SMP-safe */
-static struct dentry *autofs4_dir_lookup(struct inode *dir, struct dentry *dentry)
+static struct dentry *autofs4_dir_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
#if 0
DPRINTK(("autofs_dir_lookup: ignoring lookup of %.*s/%.*s\n",
@@ -239,7 +239,7 @@
}

/* Lookups in the root directory */
-static struct dentry *autofs4_root_lookup(struct inode *dir, struct dentry *dentry)
+static struct dentry *autofs4_root_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct autofs_sb_info *sbi;
int oz_mode;
@@ -276,7 +276,7 @@

if (dentry->d_op && dentry->d_op->d_revalidate) {
up(&dir->i_sem);
- (dentry->d_op->d_revalidate)(dentry, 0);
+ (dentry->d_op->d_revalidate)(dentry, nd);
down(&dir->i_sem);
}

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/befs/linuxvfs.c linux-2.5.73-04-lookupintent/fs/befs/linuxvfs.c
--- linux-2.5.73-03-rpc_integ/fs/befs/linuxvfs.c 2003-06-20 22:16:06.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/befs/linuxvfs.c 2003-06-30 08:48:42.000000000 +0200
@@ -33,7 +33,7 @@
static int befs_get_block(struct inode *, sector_t, struct buffer_head *, int);
static int befs_readpage(struct file *file, struct page *page);
static sector_t befs_bmap(struct address_space *mapping, sector_t block);
-static struct dentry *befs_lookup(struct inode *, struct dentry *);
+static struct dentry *befs_lookup(struct inode *, struct dentry *, struct nameidata *);
static void befs_read_inode(struct inode *ino);
static struct inode *befs_alloc_inode(struct super_block *sb);
static void befs_destroy_inode(struct inode *inode);
@@ -163,7 +163,7 @@
}

static struct dentry *
-befs_lookup(struct inode *dir, struct dentry *dentry)
+befs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct inode *inode = NULL;
struct super_block *sb = dir->i_sb;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/bfs/dir.c linux-2.5.73-04-lookupintent/fs/bfs/dir.c
--- linux-2.5.73-03-rpc_integ/fs/bfs/dir.c 2003-05-05 07:49:54.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/bfs/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -127,7 +127,7 @@
return 0;
}

-static struct dentry * bfs_lookup(struct inode * dir, struct dentry * dentry)
+static struct dentry * bfs_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
{
struct inode * inode = NULL;
struct buffer_head * bh;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/cifs/cifsfs.h linux-2.5.73-04-lookupintent/fs/cifs/cifsfs.h
--- linux-2.5.73-03-rpc_integ/fs/cifs/cifsfs.h 2003-02-15 23:10:23.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/cifs/cifsfs.h 2003-06-30 08:48:42.000000000 +0200
@@ -47,7 +47,7 @@
/* Functions related to inodes */
extern struct inode_operations cifs_dir_inode_ops;
extern int cifs_create(struct inode *, struct dentry *, int);
-extern struct dentry *cifs_lookup(struct inode *, struct dentry *);
+extern struct dentry *cifs_lookup(struct inode *, struct dentry *, struct nameidata *);
extern int cifs_unlink(struct inode *, struct dentry *);
extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
extern int cifs_mkdir(struct inode *, struct dentry *, int);
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/cifs/dir.c linux-2.5.73-04-lookupintent/fs/cifs/dir.c
--- linux-2.5.73-03-rpc_integ/fs/cifs/dir.c 2003-02-15 23:10:23.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/cifs/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -178,7 +178,7 @@
}

struct dentry *
-cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry)
+cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct nameidata *nd)
{
int rc, xid;
struct cifs_sb_info *cifs_sb;
@@ -262,7 +262,7 @@
}

static int
-cifs_d_revalidate(struct dentry *direntry, int flags)
+cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
{
int isValid = 1;

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/coda/dir.c linux-2.5.73-04-lookupintent/fs/coda/dir.c
--- linux-2.5.73-03-rpc_integ/fs/coda/dir.c 2002-11-20 12:19:02.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/coda/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -30,7 +30,7 @@
/* dir inode-ops */
static int coda_create(struct inode *dir, struct dentry *new, int mode);
static int coda_mknod(struct inode *dir, struct dentry *new, int mode, dev_t rdev);
-static struct dentry *coda_lookup(struct inode *dir, struct dentry *target);
+static struct dentry *coda_lookup(struct inode *dir, struct dentry *target, struct nameidata *nd);
static int coda_link(struct dentry *old_dentry, struct inode *dir_inode,
struct dentry *entry);
static int coda_unlink(struct inode *dir_inode, struct dentry *entry);
@@ -45,7 +45,7 @@
static int coda_readdir(struct file *file, void *dirent, filldir_t filldir);

/* dentry ops */
-static int coda_dentry_revalidate(struct dentry *de, int);
+static int coda_dentry_revalidate(struct dentry *de, struct nameidata *nd);
static int coda_dentry_delete(struct dentry *);

/* support routines */
@@ -90,7 +90,7 @@

/* inode operations for directories */
/* access routines: lookup, readlink, permission */
-static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry)
+static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, struct nameidata *nd)
{
struct inode *res_inode = NULL;
struct ViceFid resfid = {0,0,0};
@@ -627,7 +627,7 @@
}

/* called when a cache lookup succeeds */
-static int coda_dentry_revalidate(struct dentry *de, int flags)
+static int coda_dentry_revalidate(struct dentry *de, struct nameidata *nd)
{
struct inode *inode = de->d_inode;
struct coda_inode_info *cii;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/cramfs/inode.c linux-2.5.73-04-lookupintent/fs/cramfs/inode.c
--- linux-2.5.73-03-rpc_integ/fs/cramfs/inode.c 2003-06-20 22:16:06.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/cramfs/inode.c 2003-06-30 08:48:42.000000000 +0200
@@ -342,7 +342,7 @@
/*
* Lookup and fill in the inode data..
*/
-static struct dentry * cramfs_lookup(struct inode *dir, struct dentry *dentry)
+static struct dentry * cramfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
unsigned int offset = 0;
int sorted;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/devfs/base.c linux-2.5.73-04-lookupintent/fs/devfs/base.c
--- linux-2.5.73-03-rpc_integ/fs/devfs/base.c 2003-06-11 08:33:24.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/devfs/base.c 2003-06-30 08:48:42.000000000 +0200
@@ -2175,7 +2175,7 @@
.d_iput = devfs_d_iput,
};

-static int devfs_d_revalidate_wait (struct dentry *dentry, int flags);
+static int devfs_d_revalidate_wait (struct dentry *dentry, struct nameidata *);

static struct dentry_operations devfs_wait_dops =
{
@@ -2212,7 +2212,7 @@

/* XXX: this doesn't handle the case where we got a negative dentry
but a devfs entry has been registered in the meanwhile */
-static int devfs_d_revalidate_wait (struct dentry *dentry, int flags)
+static int devfs_d_revalidate_wait (struct dentry *dentry, struct nameidata *nd)
{
struct inode *dir = dentry->d_parent->d_inode;
struct fs_info *fs_info = dir->i_sb->s_fs_info;
@@ -2265,7 +2265,7 @@

/* Inode operations for device entries follow */

-static struct dentry *devfs_lookup (struct inode *dir, struct dentry *dentry)
+static struct dentry *devfs_lookup (struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct devfs_entry tmp; /* Must stay in scope until devfsd idle again */
struct devfs_lookup_struct lookup_info;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/efs/namei.c linux-2.5.73-04-lookupintent/fs/efs/namei.c
--- linux-2.5.73-03-rpc_integ/fs/efs/namei.c 2002-05-23 15:18:43.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/efs/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -57,7 +57,7 @@
return(0);
}

-struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry) {
+struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) {
efs_ino_t inodenum;
struct inode * inode = NULL;

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/exec.c linux-2.5.73-04-lookupintent/fs/exec.c
--- linux-2.5.73-03-rpc_integ/fs/exec.c 2003-06-06 08:36:53.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/exec.c 2003-06-30 08:48:42.000000000 +0200
@@ -117,7 +117,8 @@
struct nameidata nd;
int error;

- error = user_path_walk(library, &nd);
+ nd.u.open.flags = O_RDONLY;
+ error = __user_walk(library, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
if (error)
goto out;

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/ext2/namei.c linux-2.5.73-04-lookupintent/fs/ext2/namei.c
--- linux-2.5.73-03-rpc_integ/fs/ext2/namei.c 2002-11-21 22:10:50.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/ext2/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -66,7 +66,7 @@
* Methods themselves.
*/

-static struct dentry *ext2_lookup(struct inode * dir, struct dentry *dentry)
+static struct dentry *ext2_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
struct inode * inode;
ino_t ino;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/ext3/namei.c linux-2.5.73-04-lookupintent/fs/ext3/namei.c
--- linux-2.5.73-03-rpc_integ/fs/ext3/namei.c 2003-06-26 01:30:59.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/ext3/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -970,7 +970,7 @@
}
#endif

-static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry)
+static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
struct inode * inode;
struct ext3_dir_entry_2 * de;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/freevxfs/vxfs_lookup.c linux-2.5.73-04-lookupintent/fs/freevxfs/vxfs_lookup.c
--- linux-2.5.73-03-rpc_integ/fs/freevxfs/vxfs_lookup.c 2002-04-24 18:20:09.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/freevxfs/vxfs_lookup.c 2003-06-30 08:48:42.000000000 +0200
@@ -51,7 +51,7 @@
#define VXFS_BLOCK_PER_PAGE(sbp) ((PAGE_CACHE_SIZE / (sbp)->s_blocksize))


-static struct dentry * vxfs_lookup(struct inode *, struct dentry *);
+static struct dentry * vxfs_lookup(struct inode *, struct dentry *, struct nameidata *);
static int vxfs_readdir(struct file *, void *, filldir_t);

struct inode_operations vxfs_dir_inode_ops = {
@@ -193,6 +193,7 @@
* vxfs_lookup - lookup pathname component
* @dip: dir in which we lookup
* @dp: dentry we lookup
+ * @nd: lookup nameidata
*
* Description:
* vxfs_lookup tries to lookup the pathname component described
@@ -203,7 +204,7 @@
* in the return pointer.
*/
static struct dentry *
-vxfs_lookup(struct inode *dip, struct dentry *dp)
+vxfs_lookup(struct inode *dip, struct dentry *dp, struct nameidata *nd)
{
struct inode *ip = NULL;
ino_t ino;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/hfs/dir_cap.c linux-2.5.73-04-lookupintent/fs/hfs/dir_cap.c
--- linux-2.5.73-03-rpc_integ/fs/hfs/dir_cap.c 2002-10-07 22:51:35.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/hfs/dir_cap.c 2003-06-30 08:48:42.000000000 +0200
@@ -28,7 +28,7 @@

/*================ Forward declarations ================*/

-static struct dentry *cap_lookup(struct inode *, struct dentry *);
+static struct dentry *cap_lookup(struct inode *, struct dentry *, struct nameidata *);
static int cap_readdir(struct file *, void *, filldir_t);

/*================ Global variables ================*/
@@ -95,7 +95,7 @@
* inode corresponding to an entry in a directory, given the inode for
* the directory and the name (and its length) of the entry.
*/
-static struct dentry *cap_lookup(struct inode * dir, struct dentry *dentry)
+static struct dentry *cap_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
ino_t dtype;
struct hfs_name cname;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/hfs/dir_dbl.c linux-2.5.73-04-lookupintent/fs/hfs/dir_dbl.c
--- linux-2.5.73-03-rpc_integ/fs/hfs/dir_dbl.c 2002-10-07 22:51:35.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/hfs/dir_dbl.c 2003-06-30 08:48:42.000000000 +0200
@@ -24,7 +24,7 @@

/*================ Forward declarations ================*/

-static struct dentry *dbl_lookup(struct inode *, struct dentry *);
+static struct dentry *dbl_lookup(struct inode *, struct dentry *, struct nameidata *);
static int dbl_readdir(struct file *, void *, filldir_t);
static int dbl_create(struct inode *, struct dentry *, int);
static int dbl_mkdir(struct inode *, struct dentry *, int);
@@ -108,7 +108,7 @@
* the inode for the directory and the name (and its length) of the
* entry.
*/
-static struct dentry *dbl_lookup(struct inode * dir, struct dentry *dentry)
+static struct dentry *dbl_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
struct hfs_name cname;
struct hfs_cat_entry *entry;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/hfs/dir_nat.c linux-2.5.73-04-lookupintent/fs/hfs/dir_nat.c
--- linux-2.5.73-03-rpc_integ/fs/hfs/dir_nat.c 2002-10-07 22:51:36.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/hfs/dir_nat.c 2003-06-30 08:48:42.000000000 +0200
@@ -30,7 +30,7 @@

/*================ Forward declarations ================*/

-static struct dentry *nat_lookup(struct inode *, struct dentry *);
+static struct dentry *nat_lookup(struct inode *, struct dentry *, struct nameidata *);
static int nat_readdir(struct file *, void *, filldir_t);
static int nat_rmdir(struct inode *, struct dentry *);
static int nat_hdr_unlink(struct inode *, struct dentry *);
@@ -97,7 +97,7 @@
* the inode corresponding to an entry in a directory, given the inode
* for the directory and the name (and its length) of the entry.
*/
-static struct dentry *nat_lookup(struct inode * dir, struct dentry *dentry)
+static struct dentry *nat_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
ino_t dtype;
struct hfs_name cname;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/hfs/sysdep.c linux-2.5.73-04-lookupintent/fs/hfs/sysdep.c
--- linux-2.5.73-03-rpc_integ/fs/hfs/sysdep.c 2002-11-17 20:53:57.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/hfs/sysdep.c 2003-06-30 08:48:42.000000000 +0200
@@ -19,7 +19,7 @@
#include <linux/hfs_fs.h>
#include <linux/smp_lock.h>

-static int hfs_revalidate_dentry(struct dentry *, int);
+static int hfs_revalidate_dentry(struct dentry *, struct nameidata *);
static int hfs_hash_dentry(struct dentry *, struct qstr *);
static int hfs_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
static void hfs_dentry_iput(struct dentry *, struct inode *);
@@ -90,7 +90,7 @@
iput(inode);
}

-static int hfs_revalidate_dentry(struct dentry *dentry, int flags)
+static int hfs_revalidate_dentry(struct dentry *dentry, struct nameidata *nd)
{
struct inode *inode = dentry->d_inode;
int diff;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/hpfs/dir.c linux-2.5.73-04-lookupintent/fs/hpfs/dir.c
--- linux-2.5.73-03-rpc_integ/fs/hpfs/dir.c 2002-11-17 20:53:57.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/hpfs/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -198,7 +198,7 @@
* to tell read_inode to read fnode or not.
*/

-struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry)
+struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
const char *name = dentry->d_name.name;
unsigned len = dentry->d_name.len;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/hpfs/hpfs_fn.h linux-2.5.73-04-lookupintent/fs/hpfs/hpfs_fn.h
--- linux-2.5.73-03-rpc_integ/fs/hpfs/hpfs_fn.h 2003-06-20 22:16:06.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/hpfs/hpfs_fn.h 2003-06-30 08:48:42.000000000 +0200
@@ -216,7 +216,7 @@
int hpfs_dir_release(struct inode *, struct file *);
loff_t hpfs_dir_lseek(struct file *, loff_t, int);
int hpfs_readdir(struct file *, void *, filldir_t);
-struct dentry *hpfs_lookup(struct inode *, struct dentry *);
+struct dentry *hpfs_lookup(struct inode *, struct dentry *, struct nameidata *);

/* dnode.c */

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/intermezzo/dcache.c linux-2.5.73-04-lookupintent/fs/intermezzo/dcache.c
--- linux-2.5.73-03-rpc_integ/fs/intermezzo/dcache.c 2003-03-14 01:52:26.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/intermezzo/dcache.c 2003-06-30 08:48:42.000000000 +0200
@@ -50,7 +50,7 @@
kmem_cache_t * presto_dentry_slab;

/* called when a cache lookup succeeds */
-static int presto_d_revalidate(struct dentry *de, int flag)
+static int presto_d_revalidate(struct dentry *de, struct nameidata *nd)
{
struct inode *inode = de->d_inode;
struct presto_file_set * root_fset;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/intermezzo/dir.c linux-2.5.73-04-lookupintent/fs/intermezzo/dir.c
--- linux-2.5.73-03-rpc_integ/fs/intermezzo/dir.c 2003-03-18 18:08:01.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/intermezzo/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -239,7 +239,7 @@
return de;
}

-struct dentry *presto_lookup(struct inode * dir, struct dentry *dentry)
+struct dentry *presto_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
int rc = 0;
struct dentry *de;
@@ -286,7 +286,7 @@
(dir, dentry, ino, generation);
is_ilookup = 1;
} else
- de = iops->lookup(dir, dentry);
+ de = iops->lookup(dir, dentry, nd);
#if 0
}
#endif
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/intermezzo/intermezzo_fs.h linux-2.5.73-04-lookupintent/fs/intermezzo/intermezzo_fs.h
--- linux-2.5.73-03-rpc_integ/fs/intermezzo/intermezzo_fs.h 2003-06-20 22:16:06.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/intermezzo/intermezzo_fs.h 2003-06-30 08:48:42.000000000 +0200
@@ -370,7 +370,7 @@
# define PRESTO_ILOOKUP_MAGIC "...ino:"
# define PRESTO_ILOOKUP_SEP ':'
int izo_dentry_is_ilookup(struct dentry *, ino_t *id, unsigned int *generation);
-struct dentry *presto_lookup(struct inode * dir, struct dentry *dentry);
+struct dentry *presto_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd);

struct presto_dentry_data {
int dd_count; /* how mnay dentries are using this dentry */
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/isofs/namei.c linux-2.5.73-04-lookupintent/fs/isofs/namei.c
--- linux-2.5.73-03-rpc_integ/fs/isofs/namei.c 2002-05-23 15:18:50.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/isofs/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -158,7 +158,7 @@
return 0;
}

-struct dentry *isofs_lookup(struct inode * dir, struct dentry * dentry)
+struct dentry *isofs_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
{
unsigned long ino;
struct inode *inode;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/jffs/inode-v23.c linux-2.5.73-04-lookupintent/fs/jffs/inode-v23.c
--- linux-2.5.73-03-rpc_integ/fs/jffs/inode-v23.c 2003-05-26 05:01:37.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/jffs/inode-v23.c 2003-06-30 08:48:42.000000000 +0200
@@ -642,7 +642,7 @@
/* Find a file in a directory. If the file exists, return its
corresponding dentry. */
static struct dentry *
-jffs_lookup(struct inode *dir, struct dentry *dentry)
+jffs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct jffs_file *d;
struct jffs_file *f;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/jffs2/dir.c linux-2.5.73-04-lookupintent/fs/jffs2/dir.c
--- linux-2.5.73-03-rpc_integ/fs/jffs2/dir.c 2003-06-23 14:42:27.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/jffs2/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -33,7 +33,7 @@
static int jffs2_readdir (struct file *, void *, filldir_t);

static int jffs2_create (struct inode *,struct dentry *,int);
-static struct dentry *jffs2_lookup (struct inode *,struct dentry *);
+static struct dentry *jffs2_lookup (struct inode *,struct dentry *, struct nameidata *);
static int jffs2_link (struct dentry *,struct inode *,struct dentry *);
static int jffs2_unlink (struct inode *,struct dentry *);
static int jffs2_symlink (struct inode *,struct dentry *,const char *);
@@ -73,7 +73,7 @@
and we use the same hash function as the dentries. Makes this
nice and simple
*/
-static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target)
+static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target, struct nameidata *nd)
{
struct jffs2_inode_info *dir_f;
struct jffs2_sb_info *c;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/jfs/namei.c linux-2.5.73-04-lookupintent/fs/jfs/namei.c
--- linux-2.5.73-03-rpc_integ/fs/jfs/namei.c 2003-06-11 19:26:32.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/jfs/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -1373,7 +1373,7 @@
return -rc;
}

-static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry)
+static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struct nameidata *nd)
{
struct btstack btstack;
ino_t inum;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/libfs.c linux-2.5.73-04-lookupintent/fs/libfs.c
--- linux-2.5.73-03-rpc_integ/fs/libfs.c 2003-06-20 22:16:06.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/libfs.c 2003-06-30 08:48:42.000000000 +0200
@@ -29,7 +29,7 @@
* exist, we know it is negative.
*/

-struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry)
+struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
d_add(dentry, NULL);
return NULL;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/minix/namei.c linux-2.5.73-04-lookupintent/fs/minix/namei.c
--- linux-2.5.73-03-rpc_integ/fs/minix/namei.c 2002-11-20 12:19:02.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/minix/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -54,7 +54,7 @@
.d_hash = minix_hash,
};

-static struct dentry *minix_lookup(struct inode * dir, struct dentry *dentry)
+static struct dentry *minix_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
struct inode * inode = NULL;
ino_t ino;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/msdos/namei.c linux-2.5.73-04-lookupintent/fs/msdos/namei.c
--- linux-2.5.73-03-rpc_integ/fs/msdos/namei.c 2003-05-27 16:32:40.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/msdos/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -193,7 +193,7 @@
*/

/***** Get inode using directory and name */
-struct dentry *msdos_lookup(struct inode *dir,struct dentry *dentry)
+struct dentry *msdos_lookup(struct inode *dir,struct dentry *dentry, struct nameidata *nd)
{
struct super_block *sb = dir->i_sb;
struct inode *inode = NULL;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/namei.c linux-2.5.73-04-lookupintent/fs/namei.c
--- linux-2.5.73-03-rpc_integ/fs/namei.c 2003-06-17 07:09:04.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -273,7 +273,7 @@
* Internal lookup() using the new generic dcache.
* SMP-safe
*/
-static struct dentry * cached_lookup(struct dentry * parent, struct qstr * name, int flags)
+static struct dentry * cached_lookup(struct dentry * parent, struct qstr * name, struct nameidata *nd)
{
struct dentry * dentry = __d_lookup(parent, name);

@@ -284,7 +284,7 @@
dentry = d_lookup(parent, name);

if (dentry && dentry->d_op && dentry->d_op->d_revalidate) {
- if (!dentry->d_op->d_revalidate(dentry, flags) && !d_invalidate(dentry)) {
+ if (!dentry->d_op->d_revalidate(dentry, nd) && !d_invalidate(dentry)) {
dput(dentry);
dentry = NULL;
}
@@ -336,7 +336,7 @@
* make sure that nobody added the entry to the dcache in the meantime..
* SMP-safe
*/
-static struct dentry * real_lookup(struct dentry * parent, struct qstr * name, int flags)
+static struct dentry * real_lookup(struct dentry * parent, struct qstr * name, struct nameidata *nd)
{
struct dentry * result;
struct inode *dir = parent->d_inode;
@@ -361,7 +361,7 @@
struct dentry * dentry = d_alloc(parent, name);
result = ERR_PTR(-ENOMEM);
if (dentry) {
- result = dir->i_op->lookup(dir, dentry);
+ result = dir->i_op->lookup(dir, dentry, nd);
if (result)
dput(dentry);
else
@@ -377,7 +377,7 @@
*/
up(&dir->i_sem);
if (result->d_op && result->d_op->d_revalidate) {
- if (!result->d_op->d_revalidate(result, flags) && !d_invalidate(result)) {
+ if (!result->d_op->d_revalidate(result, nd) && !d_invalidate(result)) {
dput(result);
result = ERR_PTR(-ENOENT);
}
@@ -524,7 +524,7 @@
* It _is_ time-critical.
*/
static int do_lookup(struct nameidata *nd, struct qstr *name,
- struct path *path, int flags)
+ struct path *path)
{
struct vfsmount *mnt = nd->mnt;
struct dentry *dentry = __d_lookup(nd->dentry, name);
@@ -539,13 +539,13 @@
return 0;

need_lookup:
- dentry = real_lookup(nd->dentry, name, LOOKUP_CONTINUE);
+ dentry = real_lookup(nd->dentry, name, nd);
if (IS_ERR(dentry))
goto fail;
goto done;

need_revalidate:
- if (dentry->d_op->d_revalidate(dentry, flags))
+ if (dentry->d_op->d_revalidate(dentry, nd))
goto done;
if (d_invalidate(dentry))
goto done;
@@ -638,8 +638,9 @@
if (err < 0)
break;
}
+ nd->flags |= LOOKUP_CONTINUE;
/* This does the actual lookups.. */
- err = do_lookup(nd, &this, &next, LOOKUP_CONTINUE);
+ err = do_lookup(nd, &this, &next);
if (err)
break;
/* Check mountpoints.. */
@@ -681,6 +682,7 @@
last_with_slashes:
lookup_flags |= LOOKUP_FOLLOW | LOOKUP_DIRECTORY;
last_component:
+ nd->flags &= ~LOOKUP_CONTINUE;
if (lookup_flags & LOOKUP_PARENT)
goto lookup_parent;
if (this.name[0] == '.') switch (this.len) {
@@ -700,7 +702,7 @@
if (err < 0)
break;
}
- err = do_lookup(nd, &this, &next, 0);
+ err = do_lookup(nd, &this, &next);
if (err)
break;
follow_mount(&next.mnt, &next.dentry);
@@ -769,6 +771,7 @@
*/
nd_root.last_type = LAST_ROOT;
nd_root.flags = nd->flags;
+ memcpy(&nd_root.u, &nd->u, sizeof(nd_root.u));
read_lock(&current->fs->lock);
nd_root.mnt = mntget(current->fs->rootmnt);
nd_root.dentry = dget(current->fs->root);
@@ -866,7 +869,7 @@
* needs parent already locked. Doesn't follow mounts.
* SMP-safe.
*/
-struct dentry * lookup_hash(struct qstr *name, struct dentry * base)
+static struct dentry * __lookup_hash(struct qstr *name, struct dentry * base, struct nameidata *nd)
{
struct dentry * dentry;
struct inode *inode;
@@ -889,13 +892,13 @@
goto out;
}

- dentry = cached_lookup(base, name, 0);
+ dentry = cached_lookup(base, name, nd);
if (!dentry) {
struct dentry *new = d_alloc(base, name);
dentry = ERR_PTR(-ENOMEM);
if (!new)
goto out;
- dentry = inode->i_op->lookup(inode, new);
+ dentry = inode->i_op->lookup(inode, new, nd);
if (!dentry)
dentry = new;
else
@@ -905,6 +908,11 @@
return dentry;
}

+struct dentry * lookup_hash(struct qstr *name, struct dentry * base)
+{
+ return __lookup_hash(name, base, NULL);
+}
+
/* SMP-safe */
struct dentry * lookup_one_len(const char * name, struct dentry * base, int len)
{
@@ -1222,11 +1230,15 @@
if (flag & O_APPEND)
acc_mode |= MAY_APPEND;

+ /* Fill in the open() intent data */
+ nd->u.open.flags = flag;
+ nd->u.open.create_mode = mode;
+
/*
* The simplest case - just a plain lookup.
*/
if (!(flag & O_CREAT)) {
- error = path_lookup(pathname, lookup_flags(flag), nd);
+ error = path_lookup(pathname, lookup_flags(flag)|LOOKUP_OPEN, nd);
if (error)
return error;
dentry = nd->dentry;
@@ -1236,7 +1248,7 @@
/*
* Create - we need to know the parent.
*/
- error = path_lookup(pathname, LOOKUP_PARENT, nd);
+ error = path_lookup(pathname, LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE, nd);
if (error)
return error;

@@ -1250,8 +1262,9 @@
goto exit;

dir = nd->dentry;
+ nd->flags &= ~LOOKUP_PARENT;
down(&dir->d_inode->i_sem);
- dentry = lookup_hash(&nd->last, nd->dentry);
+ dentry = __lookup_hash(&nd->last, nd->dentry, nd);

do_last:
error = PTR_ERR(dentry);
@@ -1354,7 +1367,7 @@
}
dir = nd->dentry;
down(&dir->d_inode->i_sem);
- dentry = lookup_hash(&nd->last, nd->dentry);
+ dentry = __lookup_hash(&nd->last, nd->dentry, nd);
putname(nd->last.name);
goto do_last;
}
@@ -1368,6 +1381,7 @@
dentry = ERR_PTR(-EEXIST);
if (nd->last_type != LAST_NORM)
goto fail;
+ nd->flags &= ~LOOKUP_PARENT;
dentry = lookup_hash(&nd->last, nd->dentry);
if (IS_ERR(dentry))
goto fail;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/ncpfs/dir.c linux-2.5.73-04-lookupintent/fs/ncpfs/dir.c
--- linux-2.5.73-03-rpc_integ/fs/ncpfs/dir.c 2003-04-03 08:51:32.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/ncpfs/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -35,7 +35,7 @@
static int ncp_readdir(struct file *, void *, filldir_t);

static int ncp_create(struct inode *, struct dentry *, int);
-static struct dentry *ncp_lookup(struct inode *, struct dentry *);
+static struct dentry *ncp_lookup(struct inode *, struct dentry *, struct nameidata *);
static int ncp_unlink(struct inode *, struct dentry *);
static int ncp_mkdir(struct inode *, struct dentry *, int);
static int ncp_rmdir(struct inode *, struct dentry *);
@@ -72,7 +72,7 @@
/*
* Dentry operations routines
*/
-static int ncp_lookup_validate(struct dentry *, int);
+static int ncp_lookup_validate(struct dentry *, struct nameidata *);
static int ncp_hash_dentry(struct dentry *, struct qstr *);
static int ncp_compare_dentry (struct dentry *, struct qstr *, struct qstr *);
static int ncp_delete_dentry(struct dentry *);
@@ -264,7 +264,7 @@


static int
-__ncp_lookup_validate(struct dentry * dentry, int flags)
+__ncp_lookup_validate(struct dentry * dentry, struct nameidata *nd)
{
struct ncp_server *server;
struct dentry *parent;
@@ -333,11 +333,11 @@
}

static int
-ncp_lookup_validate(struct dentry * dentry, int flags)
+ncp_lookup_validate(struct dentry * dentry, struct nameidata *nd)
{
int res;
lock_kernel();
- res = __ncp_lookup_validate(dentry, flags);
+ res = __ncp_lookup_validate(dentry, nd);
unlock_kernel();
return res;
}
@@ -797,7 +797,7 @@
return result;
}

-static struct dentry *ncp_lookup(struct inode *dir, struct dentry *dentry)
+static struct dentry *ncp_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct ncp_server *server = NCP_SERVER(dir);
struct inode *inode = NULL;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/nfs/dir.c linux-2.5.73-04-lookupintent/fs/nfs/dir.c
--- linux-2.5.73-03-rpc_integ/fs/nfs/dir.c 2003-06-26 01:30:54.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/nfs/dir.c 2003-06-30 08:48:42.000000000 +0200
@@ -37,7 +37,7 @@

static int nfs_opendir(struct inode *, struct file *);
static int nfs_readdir(struct file *, void *, filldir_t);
-static struct dentry *nfs_lookup(struct inode *, struct dentry *);
+static struct dentry *nfs_lookup(struct inode *, struct dentry *, struct nameidata *);
static int nfs_cached_lookup(struct inode *, struct dentry *,
struct nfs_fh *, struct nfs_fattr *);
static int nfs_create(struct inode *, struct dentry *, int);
@@ -515,7 +515,7 @@
* If the parent directory is seen to have changed, we throw out the
* cached dentry and do a new lookup.
*/
-static int nfs_lookup_revalidate(struct dentry * dentry, int flags)
+static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
{
struct inode *dir;
struct inode *inode;
@@ -630,7 +630,7 @@
.d_iput = nfs_dentry_iput,
};

-static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry)
+static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd)
{
struct inode *inode = NULL;
int error;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/ntfs/namei.c linux-2.5.73-04-lookupintent/fs/ntfs/namei.c
--- linux-2.5.73-03-rpc_integ/fs/ntfs/namei.c 2003-04-30 14:51:58.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/ntfs/namei.c 2003-06-30 08:48:42.000000000 +0200
@@ -29,6 +29,7 @@
* ntfs_lookup - find the inode represented by a dentry in a directory inode
* @dir_ino: directory inode in which to look for the inode
* @dent: dentry representing the inode to look for
+ * @nd: lookup nameidata
*
* In short, ntfs_lookup() looks for the inode represented by the dentry @dent
* in the directory inode @dir_ino and if found attaches the inode to the
@@ -87,7 +88,7 @@
* name. We then convert the name to the current NLS code page, and proceed
* searching for a dentry with this name, etc, as in case 2), above.
*/
-static struct dentry *ntfs_lookup(struct inode *dir_ino, struct dentry *dent)
+static struct dentry *ntfs_lookup(struct inode *dir_ino, struct dentry *dent, struct nameidata *nd)
{
ntfs_volume *vol = NTFS_SB(dir_ino->i_sb);
struct inode *dent_inode;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/openpromfs/inode.c linux-2.5.73-04-lookupintent/fs/openpromfs/inode.c
--- linux-2.5.73-03-rpc_integ/fs/openpromfs/inode.c 2003-05-26 05:01:15.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/openpromfs/inode.c 2003-06-30 08:48:42.000000000 +0200
@@ -61,7 +61,7 @@

static int openpromfs_create (struct inode *, struct dentry *, int);
static int openpromfs_readdir(struct file *, void *, filldir_t);
-static struct dentry *openpromfs_lookup(struct inode *, struct dentry *dentry);
+static struct dentry *openpromfs_lookup(struct inode *, struct dentry *dentry, struct nameidata *nd);
static int openpromfs_unlink (struct inode *, struct dentry *dentry);

static ssize_t nodenum_read(struct file *file, char *buf,
@@ -639,7 +639,7 @@
return 0;
}

-static struct dentry *openpromfs_lookup(struct inode * dir, struct dentry *dentry)
+static struct dentry *openpromfs_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
int ino = 0;
#define OPFSL_DIR 0
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/proc/base.c linux-2.5.73-04-lookupintent/fs/proc/base.c
--- linux-2.5.73-03-rpc_integ/fs/proc/base.c 2003-06-20 22:16:23.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/proc/base.c 2003-06-30 08:48:43.000000000 +0200
@@ -864,7 +864,7 @@
* directory. In this case, however, we can do it - no aliasing problems
* due to the way we treat inodes.
*/
-static int pid_revalidate(struct dentry * dentry, int flags)
+static int pid_revalidate(struct dentry * dentry, struct nameidata *nd)
{
if (pid_alive(proc_task(dentry->d_inode)))
return 1;
@@ -872,7 +872,7 @@
return 0;
}

-static int pid_fd_revalidate(struct dentry * dentry, int flags)
+static int pid_fd_revalidate(struct dentry * dentry, struct nameidata *nd)
{
struct task_struct *task = proc_task(dentry->d_inode);
int fd = proc_type(dentry->d_inode) - PROC_PID_FD_DIR;
@@ -961,7 +961,7 @@
}

/* SMP-safe */
-static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry)
+static struct dentry *proc_lookupfd(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
{
struct task_struct *task = proc_task(dir);
unsigned fd = name_to_int(dentry);
@@ -1219,7 +1219,7 @@
return ERR_PTR(error);
}

-static struct dentry *proc_base_lookup(struct inode *dir, struct dentry *dentry){
+static struct dentry *proc_base_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd){
return proc_pident_lookup(dir, dentry, base_stuff);
}

@@ -1326,7 +1326,7 @@
}

/* SMP-safe */
-struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry)
+struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd)
{
struct task_struct *task;
struct inode *inode;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/proc/generic.c linux-2.5.73-04-lookupintent/fs/proc/generic.c
--- linux-2.5.73-03-rpc_integ/fs/proc/generic.c 2003-04-25 17:46:19.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/proc/generic.c 2003-06-30 08:48:43.000000000 +0200
@@ -336,7 +336,7 @@
* Don't create negative dentries here, return -ENOENT by hand
* instead.
*/
-struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry)
+struct dentry *proc_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
struct inode *inode = NULL;
struct proc_dir_entry * de;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/proc/root.c linux-2.5.73-04-lookupintent/fs/proc/root.c
--- linux-2.5.73-03-rpc_integ/fs/proc/root.c 2003-05-26 03:48:57.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/proc/root.c 2003-06-30 08:48:43.000000000 +0200
@@ -79,7 +79,7 @@
proc_bus = proc_mkdir("bus", 0);
}

-static struct dentry *proc_root_lookup(struct inode * dir, struct dentry * dentry)
+static struct dentry *proc_root_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
{
if (dir->i_ino == PROC_ROOT_INO) { /* check for safety... */
lock_kernel();
@@ -87,11 +87,11 @@
unlock_kernel();
}

- if (!proc_lookup(dir, dentry)) {
+ if (!proc_lookup(dir, dentry, nd)) {
return NULL;
}

- return proc_pid_lookup(dir, dentry);
+ return proc_pid_lookup(dir, dentry, nd);
}

static int proc_root_readdir(struct file * filp,
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/qnx4/namei.c linux-2.5.73-04-lookupintent/fs/qnx4/namei.c
--- linux-2.5.73-03-rpc_integ/fs/qnx4/namei.c 2002-05-23 15:18:54.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/qnx4/namei.c 2003-06-30 08:48:43.000000000 +0200
@@ -107,7 +107,7 @@
return NULL;
}

-struct dentry * qnx4_lookup(struct inode *dir, struct dentry *dentry)
+struct dentry * qnx4_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
int ino;
struct qnx4_inode_entry *de;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/reiserfs/namei.c linux-2.5.73-04-lookupintent/fs/reiserfs/namei.c
--- linux-2.5.73-03-rpc_integ/fs/reiserfs/namei.c 2002-12-07 11:19:52.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/reiserfs/namei.c 2003-06-30 08:48:43.000000000 +0200
@@ -316,7 +316,7 @@
}


-static struct dentry * reiserfs_lookup (struct inode * dir, struct dentry * dentry)
+static struct dentry * reiserfs_lookup (struct inode * dir, struct dentry * dentry, struct nameidata *nd)
{
int retval;
struct inode * inode = NULL;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/romfs/inode.c linux-2.5.73-04-lookupintent/fs/romfs/inode.c
--- linux-2.5.73-03-rpc_integ/fs/romfs/inode.c 2003-06-20 22:16:06.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/romfs/inode.c 2003-06-30 08:48:43.000000000 +0200
@@ -329,7 +329,7 @@
}

static struct dentry *
-romfs_lookup(struct inode *dir, struct dentry *dentry)
+romfs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
unsigned long offset, maxoff;
int fslen, res;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/smbfs/dir.c linux-2.5.73-04-lookupintent/fs/smbfs/dir.c
--- linux-2.5.73-03-rpc_integ/fs/smbfs/dir.c 2003-04-03 08:51:32.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/smbfs/dir.c 2003-06-30 08:48:43.000000000 +0200
@@ -24,7 +24,7 @@
static int smb_readdir(struct file *, void *, filldir_t);
static int smb_dir_open(struct inode *, struct file *);

-static struct dentry *smb_lookup(struct inode *, struct dentry *);
+static struct dentry *smb_lookup(struct inode *, struct dentry *, struct nameidata *);
static int smb_create(struct inode *, struct dentry *, int);
static int smb_mkdir(struct inode *, struct dentry *, int);
static int smb_rmdir(struct inode *, struct dentry *);
@@ -268,7 +268,7 @@
/*
* Dentry operations routines
*/
-static int smb_lookup_validate(struct dentry *, int);
+static int smb_lookup_validate(struct dentry *, struct nameidata *);
static int smb_hash_dentry(struct dentry *, struct qstr *);
static int smb_compare_dentry(struct dentry *, struct qstr *, struct qstr *);
static int smb_delete_dentry(struct dentry *);
@@ -292,7 +292,7 @@
* This is the callback when the dcache has a lookup hit.
*/
static int
-smb_lookup_validate(struct dentry * dentry, int flags)
+smb_lookup_validate(struct dentry * dentry, struct nameidata *nd)
{
struct smb_sb_info *server = server_from_dentry(dentry);
struct inode * inode = dentry->d_inode;
@@ -420,7 +420,7 @@
}

static struct dentry *
-smb_lookup(struct inode *dir, struct dentry *dentry)
+smb_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct smb_fattr finfo;
struct inode *inode;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/sysv/namei.c linux-2.5.73-04-lookupintent/fs/sysv/namei.c
--- linux-2.5.73-03-rpc_integ/fs/sysv/namei.c 2002-11-20 12:19:02.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/sysv/namei.c 2003-06-30 08:48:43.000000000 +0200
@@ -64,7 +64,7 @@
.d_hash = sysv_hash,
};

-static struct dentry *sysv_lookup(struct inode * dir, struct dentry * dentry)
+static struct dentry *sysv_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
{
struct inode * inode = NULL;
ino_t ino;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/udf/namei.c linux-2.5.73-04-lookupintent/fs/udf/namei.c
--- linux-2.5.73-03-rpc_integ/fs/udf/namei.c 2002-11-20 12:19:02.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/udf/namei.c 2003-06-30 08:48:43.000000000 +0200
@@ -289,6 +289,7 @@
* PRE-CONDITIONS
* dir Pointer to inode of parent directory.
* dentry Pointer to dentry to complete.
+ * nd Pointer to lookup nameidata
*
* POST-CONDITIONS
* <return> Zero on success.
@@ -299,7 +300,7 @@
*/

static struct dentry *
-udf_lookup(struct inode *dir, struct dentry *dentry)
+udf_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct inode *inode = NULL;
struct fileIdentDesc cfi, *fi;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/ufs/namei.c linux-2.5.73-04-lookupintent/fs/ufs/namei.c
--- linux-2.5.73-03-rpc_integ/fs/ufs/namei.c 2002-11-20 12:19:02.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/ufs/namei.c 2003-06-30 08:48:43.000000000 +0200
@@ -62,7 +62,7 @@
return err;
}

-static struct dentry *ufs_lookup(struct inode * dir, struct dentry *dentry)
+static struct dentry *ufs_lookup(struct inode * dir, struct dentry *dentry, struct nameidata *nd)
{
struct inode * inode = NULL;
ino_t ino;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/umsdos/dir.c linux-2.5.73-04-lookupintent/fs/umsdos/dir.c
--- linux-2.5.73-03-rpc_integ/fs/umsdos/dir.c 2002-11-05 16:35:59.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/umsdos/dir.c 2003-06-30 08:48:43.000000000 +0200
@@ -30,7 +30,7 @@
*/

/* nothing for now ... */
-static int umsdos_dentry_validate(struct dentry *dentry, int flags)
+static int umsdos_dentry_validate(struct dentry *dentry, struct nameidata *nd)
{
return 1;
}
@@ -564,7 +564,7 @@
* Called by VFS; should fill dentry->d_inode via d_add.
*/

-struct dentry *UMSDOS_lookup (struct inode *dir, struct dentry *dentry)
+struct dentry *UMSDOS_lookup (struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
struct dentry *ret;

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/umsdos/rdir.c linux-2.5.73-04-lookupintent/fs/umsdos/rdir.c
--- linux-2.5.73-03-rpc_integ/fs/umsdos/rdir.c 2002-11-05 16:35:59.000000000 +0100
+++ linux-2.5.73-04-lookupintent/fs/umsdos/rdir.c 2003-06-30 08:48:43.000000000 +0200
@@ -101,7 +101,7 @@
goto out;
}

- ret = msdos_lookup (dir, dentry);
+ ret = msdos_lookup (dir, dentry, NULL);
if (ret) {
printk(KERN_WARNING
"umsdos_rlookup_x: %s/%s failed, ret=%ld\n",
@@ -129,7 +129,7 @@
}


-struct dentry *UMSDOS_rlookup ( struct inode *dir, struct dentry *dentry)
+struct dentry *UMSDOS_rlookup ( struct inode *dir, struct dentry *dentry, struct nameidata *nd)
{
return umsdos_rlookup_x (dir, dentry, 0);
}
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/vfat/namei.c linux-2.5.73-04-lookupintent/fs/vfat/namei.c
--- linux-2.5.73-03-rpc_integ/fs/vfat/namei.c 2003-05-27 16:32:40.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/vfat/namei.c 2003-06-30 08:48:43.000000000 +0200
@@ -45,7 +45,7 @@
static int vfat_hash(struct dentry *parent, struct qstr *qstr);
static int vfat_cmpi(struct dentry *dentry, struct qstr *a, struct qstr *b);
static int vfat_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b);
-static int vfat_revalidate(struct dentry *dentry, int);
+static int vfat_revalidate(struct dentry *dentry, struct nameidata *nd);

static struct dentry_operations vfat_dentry_ops[4] = {
{
@@ -68,7 +68,7 @@
}
};

-static int vfat_revalidate(struct dentry *dentry, int flags)
+static int vfat_revalidate(struct dentry *dentry, struct nameidata *nd)
{
PRINTK1(("vfat_revalidate: %s\n", dentry->d_name.name));
spin_lock(&dcache_lock);
@@ -860,7 +860,7 @@
return res ? res : -ENOENT;
}

-struct dentry *vfat_lookup(struct inode *dir,struct dentry *dentry)
+struct dentry *vfat_lookup(struct inode *dir,struct dentry *dentry, struct nameidata *nd)
{
int res;
struct vfat_slot_info sinfo;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/fs/xfs/linux/xfs_iops.c linux-2.5.73-04-lookupintent/fs/xfs/linux/xfs_iops.c
--- linux-2.5.73-03-rpc_integ/fs/xfs/linux/xfs_iops.c 2003-06-19 20:39:57.000000000 +0200
+++ linux-2.5.73-04-lookupintent/fs/xfs/linux/xfs_iops.c 2003-06-30 08:48:43.000000000 +0200
@@ -192,7 +192,8 @@
STATIC struct dentry *
linvfs_lookup(
struct inode *dir,
- struct dentry *dentry)
+ struct dentry *dentry,
+ struct nameidata *nd)
{
struct inode *ip = NULL;
vnode_t *vp, *cvp = NULL;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/affs_fs.h linux-2.5.73-04-lookupintent/include/linux/affs_fs.h
--- linux-2.5.73-03-rpc_integ/include/linux/affs_fs.h 2002-03-17 20:38:14.000000000 +0100
+++ linux-2.5.73-04-lookupintent/include/linux/affs_fs.h 2003-06-30 08:48:43.000000000 +0200
@@ -41,7 +41,7 @@
/* namei.c */

extern int affs_hash_name(struct super_block *sb, const u8 *name, unsigned int len);
-extern struct dentry *affs_lookup(struct inode *dir, struct dentry *dentry);
+extern struct dentry *affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *);
extern int affs_unlink(struct inode *dir, struct dentry *dentry);
extern int affs_create(struct inode *dir, struct dentry *dentry, int mode);
extern int affs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/dcache.h linux-2.5.73-04-lookupintent/include/linux/dcache.h
--- linux-2.5.73-03-rpc_integ/include/linux/dcache.h 2003-06-12 18:31:21.000000000 +0200
+++ linux-2.5.73-04-lookupintent/include/linux/dcache.h 2003-06-30 08:48:43.000000000 +0200
@@ -10,6 +10,7 @@
#include <linux/rcupdate.h>
#include <asm/bug.h>

+struct nameidata;
struct vfsmount;

/*
@@ -106,7 +107,7 @@
#define DNAME_INLINE_LEN (sizeof(struct dentry)-offsetof(struct dentry,d_iname))

struct dentry_operations {
- int (*d_revalidate)(struct dentry *, int);
+ int (*d_revalidate)(struct dentry *, struct nameidata *);
int (*d_hash) (struct dentry *, struct qstr *);
int (*d_compare) (struct dentry *, struct qstr *, struct qstr *);
int (*d_delete)(struct dentry *);
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/efs_fs.h linux-2.5.73-04-lookupintent/include/linux/efs_fs.h
--- linux-2.5.73-03-rpc_integ/include/linux/efs_fs.h 2003-06-20 22:16:06.000000000 +0200
+++ linux-2.5.73-04-lookupintent/include/linux/efs_fs.h 2003-06-30 08:48:43.000000000 +0200
@@ -46,7 +46,7 @@
extern void efs_read_inode(struct inode *);
extern efs_block_t efs_map_block(struct inode *, efs_block_t);

-extern struct dentry *efs_lookup(struct inode *, struct dentry *);
+extern struct dentry *efs_lookup(struct inode *, struct dentry *, struct nameidata *);
extern int efs_bmap(struct inode *, int);

#endif /* __EFS_FS_H__ */
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/fs.h linux-2.5.73-04-lookupintent/include/linux/fs.h
--- linux-2.5.73-03-rpc_integ/include/linux/fs.h 2003-06-20 22:16:06.000000000 +0200
+++ linux-2.5.73-04-lookupintent/include/linux/fs.h 2003-06-30 08:48:43.000000000 +0200
@@ -731,7 +731,7 @@

struct inode_operations {
int (*create) (struct inode *,struct dentry *,int);
- struct dentry * (*lookup) (struct inode *,struct dentry *);
+ struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameidata *);
int (*link) (struct dentry *,struct inode *,struct dentry *);
int (*unlink) (struct inode *,struct dentry *);
int (*symlink) (struct inode *,struct dentry *,const char *);
@@ -1291,7 +1291,7 @@
extern int simple_commit_write(struct file *file, struct page *page,
unsigned offset, unsigned to);

-extern struct dentry *simple_lookup(struct inode *, struct dentry *);
+extern struct dentry *simple_lookup(struct inode *, struct dentry *, struct nameidata *);
extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
extern struct file_operations simple_dir_operations;
extern struct inode_operations simple_dir_inode_operations;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/iso_fs.h linux-2.5.73-04-lookupintent/include/linux/iso_fs.h
--- linux-2.5.73-03-rpc_integ/include/linux/iso_fs.h 2003-04-25 21:35:37.000000000 +0200
+++ linux-2.5.73-04-lookupintent/include/linux/iso_fs.h 2003-06-30 08:48:43.000000000 +0200
@@ -227,7 +227,7 @@
int get_joliet_filename(struct iso_directory_record *, unsigned char *, struct inode *);
int get_acorn_filename(struct iso_directory_record *, char *, struct inode *);

-extern struct dentry *isofs_lookup(struct inode *, struct dentry *);
+extern struct dentry *isofs_lookup(struct inode *, struct dentry *, struct nameidata *);
extern struct buffer_head *isofs_bread(struct inode *, sector_t);
extern int isofs_get_blocks(struct inode *, sector_t, struct buffer_head **, unsigned long);

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/msdos_fs.h linux-2.5.73-04-lookupintent/include/linux/msdos_fs.h
--- linux-2.5.73-03-rpc_integ/include/linux/msdos_fs.h 2003-06-20 22:16:06.000000000 +0200
+++ linux-2.5.73-04-lookupintent/include/linux/msdos_fs.h 2003-06-30 08:48:43.000000000 +0200
@@ -307,7 +307,7 @@
struct msdos_dir_entry **res_de, loff_t *i_pos);

/* msdos/namei.c - these are for Umsdos */
-extern struct dentry *msdos_lookup(struct inode *dir, struct dentry *);
+extern struct dentry *msdos_lookup(struct inode *dir, struct dentry *, struct nameidata *);
extern int msdos_create(struct inode *dir, struct dentry *dentry, int mode);
extern int msdos_rmdir(struct inode *dir, struct dentry *dentry);
extern int msdos_mkdir(struct inode *dir, struct dentry *dentry, int mode);
@@ -317,7 +317,7 @@
extern int msdos_fill_super(struct super_block *sb, void *data, int silent);

/* vfat/namei.c - these are for dmsdos */
-extern struct dentry *vfat_lookup(struct inode *dir, struct dentry *);
+extern struct dentry *vfat_lookup(struct inode *dir, struct dentry *, struct nameidata *);
extern int vfat_create(struct inode *dir, struct dentry *dentry, int mode);
extern int vfat_rmdir(struct inode *dir, struct dentry *dentry);
extern int vfat_unlink(struct inode *dir, struct dentry *dentry);
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/namei.h linux-2.5.73-04-lookupintent/include/linux/namei.h
--- linux-2.5.73-03-rpc_integ/include/linux/namei.h 2003-04-09 20:44:15.000000000 +0200
+++ linux-2.5.73-04-lookupintent/include/linux/namei.h 2003-06-30 08:48:43.000000000 +0200
@@ -5,12 +5,28 @@

struct vfsmount;

+struct open_intent {
+ int flags;
+ int create_mode;
+};
+
struct nameidata {
struct dentry *dentry;
struct vfsmount *mnt;
struct qstr last;
unsigned int flags;
int last_type;
+
+ /* Intent data */
+ union {
+ struct open_intent open;
+ } u;
+
+#if 0
+ /* FS private data */
+ void *it_private;
+ void (*it_release)(struct nameidata *, void *);
+#endif
};

/*
@@ -31,7 +47,11 @@
#define LOOKUP_CONTINUE 4
#define LOOKUP_PARENT 16
#define LOOKUP_NOALT 32
-
+/*
+ * Intent data
+ */
+#define LOOKUP_OPEN (0x0100)
+#define LOOKUP_CREATE (0x0200)

extern int FASTCALL(__user_walk(const char __user *, unsigned, struct nameidata *));
#define user_path_walk(name,nd) \
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/proc_fs.h linux-2.5.73-04-lookupintent/include/linux/proc_fs.h
--- linux-2.5.73-03-rpc_integ/include/linux/proc_fs.h 2003-06-08 00:17:50.000000000 +0200
+++ linux-2.5.73-04-lookupintent/include/linux/proc_fs.h 2003-06-30 08:48:43.000000000 +0200
@@ -92,7 +92,7 @@
extern void proc_root_init(void);
extern void proc_misc_init(void);

-struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry);
+struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *);
struct dentry *proc_pid_unhash(struct task_struct *p);
void proc_pid_flush(struct dentry *proc_dentry);
int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir);
@@ -115,7 +115,7 @@
* of the /proc/<pid> subdirectories.
*/
extern int proc_readdir(struct file *, void *, filldir_t);
-extern struct dentry *proc_lookup(struct inode *, struct dentry *);
+extern struct dentry *proc_lookup(struct inode *, struct dentry *, struct nameidata *);

extern struct file_operations proc_kcore_operations;
extern struct file_operations proc_kmsg_operations;
diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/qnx4_fs.h linux-2.5.73-04-lookupintent/include/linux/qnx4_fs.h
--- linux-2.5.73-03-rpc_integ/include/linux/qnx4_fs.h 2002-10-07 19:27:58.000000000 +0200
+++ linux-2.5.73-04-lookupintent/include/linux/qnx4_fs.h 2003-06-30 08:48:43.000000000 +0200
@@ -110,7 +110,7 @@
struct inode vfs_inode;
};

-extern struct dentry *qnx4_lookup(struct inode *dir, struct dentry *dentry);
+extern struct dentry *qnx4_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd);
extern unsigned long qnx4_count_free_blocks(struct super_block *sb);
extern unsigned long qnx4_block_map(struct inode *inode, long iblock);

diff -u --recursive --new-file linux-2.5.73-03-rpc_integ/include/linux/umsdos_fs.p linux-2.5.73-04-lookupintent/include/linux/umsdos_fs.p
--- linux-2.5.73-03-rpc_integ/include/linux/umsdos_fs.p 2002-11-20 12:19:02.000000000 +0100
+++ linux-2.5.73-04-lookupintent/include/linux/umsdos_fs.p 2003-06-30 08:48:43.000000000 +0200
@@ -10,7 +10,7 @@
void umsdos_lookup_patch_new(struct dentry *, struct umsdos_info *);
int umsdos_is_pseudodos (struct inode *dir, struct dentry *dentry);
struct dentry *umsdos_lookup_x ( struct inode *dir, struct dentry *dentry, int nopseudo);
-struct dentry *UMSDOS_lookup(struct inode *, struct dentry *);
+struct dentry *UMSDOS_lookup(struct inode *, struct dentry *, struct nameidata *);
struct dentry *umsdos_lookup_dentry(struct dentry *, char *, int, int);
struct dentry *umsdos_covered(struct dentry *, char *, int);

@@ -92,7 +92,7 @@

/* rdir.c 22/03/95 03.31.42 */
struct dentry *umsdos_rlookup_x (struct inode *dir, struct dentry *dentry, int nopseudo);
-struct dentry *UMSDOS_rlookup (struct inode *dir, struct dentry *dentry);
+struct dentry *UMSDOS_rlookup (struct inode *dir, struct dentry *dentry, struct nameidata *nd);

static inline struct umsdos_inode_info *UMSDOS_I(struct inode *inode)
{


2003-06-30 15:14:26

by Matthew Wilcox

[permalink] [raw]
Subject: Re: [PATCH 1/4] Optimize NFS open() calls by means of 'intents'...

On Mon, Jun 30, 2003 at 04:36:45PM +0200, Trond Myklebust wrote:
> +++ linux-2.5.73-04-lookupintent/include/linux/namei.h 2003-06-30 08:48:43.000000000 +0200
> struct nameidata {
> struct dentry *dentry;
> struct vfsmount *mnt;
> struct qstr last;
> unsigned int flags;
> int last_type;
> +
> + /* Intent data */
> + union {
> + struct open_intent open;
> + } u;
> +
> +#if 0
> + /* FS private data */
> + void *it_private;
> + void (*it_release)(struct nameidata *, void *);
> +#endif

Can we call the union something descriptive (eg "intent") rather than "u"?
"u" only makes sense when you're working around not having anonymous
unions.

--
"It's not Hollywood. War is real, war is primarily not about defeat or
victory, it is about death. I've seen thousands and thousands of dead bodies.
Do you think I want to have an academic debate on this subject?" -- Robert Fisk

2003-07-01 09:39:41

by Trond Myklebust

[permalink] [raw]
Subject: Re: [PATCH 1/4] Optimize NFS open() calls by means of 'intents'...


> Can we call the union something descriptive (eg "intent")
> rather than "u"?

Sure. I'm fine with substutiting 'intent' for 'u' in the final version.

Any other comments/objections/... before I push this on to Linus?

Cheers,
Trond